Would be nice but you can just get a silk touch pickaxe and pickup your enderchest that way. Can't make the wild too easy now. I like to think of maybe Chest backpacks that have unique ID's and each 1 stores the data of the items you have put inside it. Though the GUI would have to be edited completely and having much less storage capacity than an actual single chest. I'd say 4-6 extra slots per chest?